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https://issues.apache.org/jira/browse/HADOOP-6667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852144#action_12852144
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Eli Collins commented on HADOOP-6667:
-------------------------------------
+1 lgtm
> RPC.waitForProxy should retry through NoRouteToHostException
> ------------------------------------------------------------
>
> Key: HADOOP-6667
> URL: https://issues.apache.org/jira/browse/HADOOP-6667
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 0.21.0, 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Attachments: hadoop-6667.txt
>
>
> RPC.waitForProxy already loops through ConnectExceptions, but
> NoRouteToHostException is not a subclass of ConnectException. In the case
> that the NN is on a VIP, the No Route To Host error is reasonably common
> during a failover, so we should retry through it just the same as the other
> connection errors.
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